Grain separator



Dec. 28. 1926. 1,611,979

J. M. WYMAN GRAIN I SEPARATOR Filed April 29: 19 26 2 Sheets-Sheet 1elite (Ma smocutoz Patented Dec. 28, 1926.

JOHN M. XVYMAN, OF PEKIH, INDIAIQFA.

GRAIN snr'nan'ro'n.

Application filed April 29, 12-28. Serial filo. 105,455.

This invention relates to thrashing ma.- chines or grain separators, andaims to improve generally the construction illustrated in my copendingapplication filed May 26, 1925, novel means being provided to insureagainst the grain which is being thrashed from collecting on the insideof rotary beaters during the thrashing operation.

Another object of the invention is to provide means whereby any materialpassed between the ends of the rotary heaters and the body of themachine will be thrashed in passing through the machine.

Another object of the invention is to prevent a comparatively dead airspace in interior of complete revolving cylinder or rotary element, bythe additions of one or more extra rods to each beater, thus preventinggrain from passing through the body of rotary element unthrashed.

lVith the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed, may be made within thescope of what is claimed, without departing from the spirit of theinvention.

Referring to the drawings:

Figure 1 is a longitudinal sectional view through a machine constructedin accordance with the invention.

Figure 2 is a sectional view taken on line 22 of Figure 1.

Figure 3 is a vertical sectional View through a modified form of theinvention.

Figure 4 is a vertical sectional view through a further modified form ofthe invention.

Figure 5 is a fragmental sectional view illustrating the depressionsformed in the bearings for thrashing grain.

Referring to the drawings in detail, the

reference character 5 indicates the side mom bers of the machine betweenwhich the rotary beater, forming the subject matter of this invention,operates.

Grain is fed over the inclined bottom 6 which is connected with theconcave 7 that is formed with ribs 8 that cooperate with the pivotedheaters 9 to thrash the grain that passes over the concave 7. The rotarybeaters are connected with the hubs 10 that in turn are secured to theshaft 11 which moves Bods 15 extend through openings in the hubs 10, theouter end of the rods 15 providing supports for the pivoted beaterelements 16, each of which comprises a substantially U-shaped member,the main bar 17 thereof having its inner edge tapered as shown moreclearly by Figure 1 so that grain will not collect thereon during therotation of the beaters.

One or more rods 18 connect the side members of each beater to furtherbrace the heaters so that they will withstand the strain brought to bearthereon as the heaters are being rotated, and also prevent a dead airspace, thus preventinggrain from passing through complete rotatingelement, unthrashed, while machine is in operation.

Vertical baffles 19 are arranged above the rotary beat-er and cooperatewith the beater in preventing the material being thrashed from beingcarried to the forward part of the machine by the continuous rotation ofthe beater.

In the form of the invention as illustrated by Figure 3, the upper edgesof the bars 17 are inclined as at 20 to insure against the grain beingthrashed collecting on the inner edges of the bars 17. In Figure 4, theupper edges of the bars 17 are rounded as at 21, which is another methodof constructing the inner surfaces of the main bars of the heaters tocause the grain to slide therefrom.

As shown by Figure 5, the plates 13 are provided with grooves 24 whichalso act to catch grain which may be thrown between the ends of therotary heaters and plates 13. to thrash the material.

From the foregoing it will be obvious that as material is fed into theconcave 7 the heaters which are rotated by means of the pulley 22 andbelt passing from a suit able power device not shown, will strike thematerial and knock the grain therefrom.

iii)

As illustrated by Figure 1, the connection between the member 6 andconcave 7 is in the form of an inclined board 23, to the end that graincannot collect on this member I claim In a grain separator, abody-portion, an inclined bottom member over Which material is fedforming a part of the body portion, a concave supported adjacent to theinner end of the inclined bottom member, said concave having a pluralityof spaced ribs, a rotary beater including pivoted beater elementsmounted to operate above the concave, bearing plates supported adjacentto the ends of the rotary beater, said bearing plates having groovesformed therein, and said beater elements adapted to cooperate with thebearing plates to thrash grain from the material that falls between therotary beater elements and bearing plates.

In testimony that I claim the foregoing as my own, I have hereto aliixedmy signature.

JOHN M. WYMAN.

